Filigran

Filigran is an open-source cyber threat management company trusted by government agencies and critical infrastructure organisations worldwide. The Filigran eXtended Threat Management (XTM) suite helps public sector security teams move from reactive defence to intelligence-led, coordinated cyber response. OpenCTI structures and operationalises cyber threat intelligence at technical, operational, and strategic levels — enabling agencies to share, contextualise, and act on threat data across organisational boundaries. OpenAEV strengthens resilience through advanced attack simulations, adversary emulation, and crisis management exercises. More than 6,500 organisations globally rely on Filigran, including the European Commission, ENISA, ANSSI, the French Ministry of the Interior, the New York State Cyber Command, and several U.S. and Australian federal agencies. Filigran's open-source model delivers full transparency, community-driven development, and zero vendor lock-in — critical for sovereign and whole-of-government deployments. In October 2025, Filigran closed a $58M Series C led by Eurazeo, with Deutsche Telekom, Accel, and Insight Partners. Learn more at filigran.io